| Johnston | John | 38553 | Private | Source: QSA Medal Rolls | 132nd Company, 29th Btn, IY |
| Johnston | John | 25499 | Private | Source: QSA Medal Rolls | 39th Company, 10th Btn, IY |
| Johnston | John | 26869 | Trooper | Source: Nominal roll in WO127 | Prince of Wales Light Horse |
| Johnston | John | | Trooper | Served 28 Feb 02 to 30 Jun 02. Discharged Mother, A. Johnston, Fetterangus, Mintlaw, Aberdeen
Source: Nominal roll in WO127 | Canadian Scouts |
| Johnston | John | 28929 | Lance Corporal | 2nd Battalion
Source: QSA Medal Rolls | Scottish Horse |
| Johnston | John | 33268 | Trooper | Served 21 Feb 01 to 12 Mar 02. Sent FGCM C.T.
Source: Nominal roll in WO127 | Scottish Horse |
| Johnston | John | 28929 | Lance Corporal | Source: Nominal roll in WO127 | Scottish Horse |
| Johnston | John | | | Source: Attestation paper in WO126 | Canadian Scouts |
| Johnston | John | 42203 | Trooper | Source: QSA Medal Rolls | 133th Company, 29th Btn, IY |
| Johnston | John Buist | | | Source: Attestation paper in WO126 | Brabant's Horse |
| Johnston | John Charles | 9425 | Private | Source: QSA Medal Rolls | 46th Company, 12th Btn, IY |
| Johnston | John David | 2917 | Private | Source: OZ-Boer database | West Australia, 4th Battalion Australian Commonwea |
| Johnston | John Francis | 40618 | Trooper | Source: QSA Medal Rolls | 133th Company, 29th Btn, IY |
| Johnston | John Frederick | | | 2nd Battalion
Source: QSA and KSA rolls | Imperial Light Horse |
| Johnston | John George | 26184 | Trooper | Served 06 Feb 01 to unknown data.
Source: Nominal roll in WO127 | Bechuanaland Rifles |
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